"None of us vote for the Prime Minister and I think for a lot of people their minds will be focused on who they want as their local MP", said Mr Jarvis, who a year ago warned that Labour faced annihilation at the polls if Mr Corbyn was re-elected as party leader.
"There is a debate in Cambridge tonight".
"I invite her to go to Cambridge and debate her policies, debate their record, debate their plans, debate their proposals and let the public make up their mind".
Corbyn added that the future of the NHS is at stake with patients suffering longer waiting times and hospitals at risk of closure.
The PM said she wanted to speak directly to voters and answer their questions rather than "squabbling" with other party leaders.
Come on Prime Minister, come and have a chat.
"I have never been afraid of a debate in my life".
The rally will still be going ahead with a speech from Shadow Education Secretary Angela Rayner.
"Theresa May called this election because she is taking you for granted".
Green party co-leader Caroline Lucas said: "I think the first rule of leadership is to show up. She won't turn up to these debates because her campaign of soundbites is falling apart", she said.
Liberal Democrat former deputy prime minister Nick Clegg has also branded the Tory move "cynical", claiming it would offer just 7p's worth of food for each child - the equivalent of half a boiled egg, one slice of bread with 12 baked beans or 37.5 cornflakes and 100ml of semi-skimmed milk.
He also criticised the Tories for what he called "a stage-managed arms-length campaign".
"Support for Labour among younger voters has gone up, and gone up dramatically, but then the crucial question is whether these young people will come out to vote", said John Curtice, a leading psephologist who is president of the British Polling Council.
Another, Mandy Robinson, replied to say she had cancelled plans to attend. "I made a sign and everything". However, the left-winger dramatically U-turn on the vow and took part in the BBC debate.
Alongside figures from the Lib Dems, Ukip, the Greens, the SNP, Plaid Cymru, he faced down not Theresa May - who Mr Corbyn accused of "weakness" for refusing to debate him - but Amber Rudd, Mrs May's replacement as Home Secretary.
Most striking, though, was an estimate of the likely result of the election in Wednesday's edition of The Times of London, compiled by YouGov with an innovative analysis of 50,000 interviews of 7,000 people over seven days. Mr Farron said. "The Prime Minister is not here tonight".
A Conservative source said: "The public want to see a leader who can stare down the EU-27 at the negotiation table, not someone who will need their iPad to remember their dodgy facts in a debate".
Serena Williams's Absence Leaves a Giant Void at French Open
Venus Williams eased into the third round of the French Open with a straight sets win over Japanese Kurumi Nara here on Wednesday. According to TennisGrandstand, Serena would have been the BookMaker's betting favorite to win the French Open 2017.
All Blacks unveil new strip ahead of Lions tour
British & Irish Lions captain Sam Warburton says his team will not be preoccupied by style during their time in New Zealand . The Lions players, dressed in formal suits and red ties, responded with songs of their own, a Welsh hymn.
Asus unveils ROG Strix laptop with AMD Ryzen 7 CPU
AMD also announced that its upcoming 16-core, 32-thread Ryzen Threadripper CPU will launch in " summer 2017 ". It will feature "up to" 16 cores and 32 threads, and offer 64 PCIe 3.0 lanes, and quad-channel DDR4 memory.